Technical data

III.2 Output functions
III.2.1 Analog outputs
DC-monitor: armature current setpoint IDC and tachometer monitor output VTA
Depending on the setting of the DC-MONITOR parameter, the IDC/VTA output (terminal X3/23)
provides either the current setpoint (IDC) or a tachometer voltage (VTA).
IDC preselection
The IDC monitor provides ± 10V at ± peak equipment current (sinusoidal rms value) referred
to AGND.
The output is the equivalent to the active current value, which is approximately proportional to
the motor output torque. Output resistance: 2.2kΩ, resolution: 8bit.
VTA preselection
The output provides ±10V referred to AGND at the preset final speed limit.
Output resistance: 2.2kΩ, resolution: 8 bit.
III.2.2 Digital outputs
Ready-to-operate contact BTB
Ready-to-operate (BTB, terminal X3/21 and 22, max. voltage 24V DC/42V AC) is signalled via a
floating relay contact (100V/0,5A DC). The contact it closed when the amplifier is ready for
operation. The signal is not affected by the enable signal or the I
t limit.
Programmable
output I/0
Terminal X3/15 (I/O) can be programmed by the I/O parameter for the following output functions
(see Chapter II.2.2 or II.2.4 for a wiring example):
— I2T : signals that the preset I t threshold (high level) has been reached
— BALLAST : signals that the preset ballast limit (high level) has been exceeded
Ground reference: DGND (terminal X3/12)
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Page III - 2 Control inputs and outputs Chapter III
01.98 digifas™ 7100 series
Warning !
Do not program terminal X3/15 as an output if it is wired up as an input !